<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="text" placeholder="请输入1-100之间的整数">
<input type="button" value="猜一猜" onclick="f()">
<div></div>
<script>
  let i = document.querySelector("input")
  let d = document.querySelector("div")
  let x = parseInt(Math.random()*100)+1;
  let count = 0
  function f() {
      count++
      if (i.value>x){
          d.innerText="大了!"
      }else if (i.value<x){
          d.innerText="小了!"
      }else{
          d.innerText="猜对了!猜了"+count+"次"
          x=parseInt(Math.random()*100)+1
          count=0
      }
      i.value=""
  }
</script>
</body>
</html>